We've attempted without success to install the Production 1.0.0 on our Windows Server 2003 R2 x64 The Production 1.0.0 was the first public release of LitwareHR. The system requirements for that release called for W2K3 SP1 or R2

So what happens is the creation of the ADAM configuration fails with the IdentityStore_ADAMInstanceConfigurator.exe throwing an exception;